RT Journal Article
T1 Mechano-Chemical Synthesis, Structural Features and OpticalGap of Hybrid CH3NH3CdBr3 Perovskite
A1 Alonso, José Antonio
A1 Kayser González, Paula
A1 Hong, Bo-Kyung
A1 Álvarez-Galván, María Consuelo
A1 Fauth, Francois
A1 López, Carlos Alberto
AB Hybrid methyl-ammonium (MA:CH3NH3+) lead halide MAPbX3 (X = halogen) perovskites exhibit an attractive optoelectronic performance that can be applied to the next generation of solar cells. To extend the field of interest of these hybrid materials, we describe the synthesis by a solvent-free ball-milling procedure, yielding a well crystallized, pure and moisture stable specimen of the Cd tribromide counterpart, MACdBr3, which contains chains of face-sharing CdBr6 octahedra in a framework defined in the Cmc21 (No 36) space group. The details of the structural arrangement at 295 K have been investigated by high angular resolution synchrotron x-ray diffraction (SXRD), including the orientation of the organic MA units, which are roughly aligned along the c direction, given the acentric nature of the space group. UV-vis spectra unveil a gap of 4.6 eV, which could be useful for ultraviolet detectors.
PB MDPI AG
SN 1996-1944
YR 2021
FD 2021
LK https://hdl.handle.net/20.500.14352/7463
UL https://hdl.handle.net/20.500.14352/7463
LA eng
NO Ministerio de Economía y Competitividad
NO UNSL and ANPCyT
DS Docta Complutense
RD 5 abr 2025